Oil Pressure Gauge refill...

Found droplets of clear liquid beneath front end. Oh dear brake fluid. But no trace of a leak. Hmm. Looked further and found
it wasn't brake fluid but clear viscous whatever. Turns out to be the fluid inside the Oil Pressure gauge. How the plug ever came out a
mystery as the bike hasn't moved in months. So now I must source a 7,2mm plug and the fluid.
So just which fluid? Glycerin? Or Mono Propylene Glycol ?
Any help on this?

I'd use glycerin myself, has been used for decades in industry .............. having said that if the price point is favourable just buy a new gauge they can lose accuracy over time.

Well there you are, price on a new one is a bit of a shock. Of course a glycerine leak may be a bother but if the oil side blows out you will be more than bothered. I see your point.

I have a Morgo pressure gauge in never used condition if you want it for postage?

Can you give me a diameter of the body and of the bezel?

Onder said:

Can you give me a diameter of the body and of the bezel?

Click to expand...

It has a handle bar mount, removable, plus a rubber boot to fit over back side. I could not make it sit right on my handle bar as the rear oil line fitting would not let it rotate to same angle as speedo/tack faces.
Also, not oil filled as far as I can tell, at least not btwn glass and face.

If it is a standard 1-1/2” diameter unit, you should be able to find a replacement relatively easy on Amazon or eBay.

Just make sure you purchase one with a similar PSI range as the original (there are usually a few different versions).